So I have two DRV8825 and two Nema 17 (Manufacturer Part Number: 17HS19-2004S1). They’re wired as follows:
I’ve tested both motors and drivers and they both seem to work normally. But for some reason I am measuring 0V when I connect the negative pole of my multimeter to the ground rail and the positive pole to the potentiometer on the second DRV8825. At the same time the first DRV8825 is doing fine.
My question is as follows: Is it possible to run two steppers with two DRV8825 that are connected in parallel with one Raspberry Pi?
And if not can anybody suggest another solution, e.g. a driver that could control both steppers simultaneously?